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公开(公告)号：BRPI0607566A2
公开(公告)日：2010-04-06
申请号：BRPI0607566
申请日：2006-03-01
Applicant: BASF AG
Inventor： DIETERLE MARTIN , MUELLER-ENGEL KLAUS JOACHIM , PETZOLDT JOCHEN , HAMMON ULRICH
IPC: C07C57/05
Abstract: Disclosed is a method for producing an organic target compound by carrying out a heterogeneously catalyzed partial gas phase oxidation of an organic precursor compound with molecular oxygen in two oxidation reactor paths that are operated in parallel, and eliminating the target compound from the mixture of the product gas flows in a reprocessing path. The catalyst fed to one of the oxidation paths contains a partial amount of catalyst on which the heterogeneously catalyzed partial gas phase oxidation has been carried out longer than on the partial amounts of catalyst fed to the other oxidation reactor path.
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公开(公告)号：MY140316A
公开(公告)日：2009-12-31
申请号：MYPI20052282
申请日：2005-05-19
Applicant: BASF AG
Inventor： MACHHAMMER OTTO , SCHINDLER GOTZ-PETER , ADAMI CHRISTOPH , HECHLER CLAUS , DIETERLE MARTIN
Abstract: A PROCESS FOR PREPARING ACROLEIN OR ACRYLIC ACID OR A MIXTURE THEREOF FROM PROPANE, IN WHICH THE PROPANE IS INITIALLY DEHYDROGENATED UNDER HETEROGENEOUS CATALYSIS TO GIVE PROPENE, SECONDARY COMPONENTS ARE REMOVED AND THE REMAINING GAS MIXTURE, COMPRISING PROPANE AND PROPENE, IS SUBJECTED TO THE HETEROGENEOUSLY CATALYZED PARTIAL OXIDATION TO ACROLEIN OR ACRYLIC ACID OR A MIXTURE THEREOF AS THE TARGET PRODUCT, TARGET PRODUCT IS REMOVED FROM THE PRODUCT GAS MIXTURE AND THE REMAINING RESIDUAL GAS, COMPRISING EXCESS OXYGEN AND UNCONVERTED PROPANE, IS RECYCLED INTO THE PROPANE DEHYDROGENATION IN SUCH A WAY THAT THE OTHER PROPANE FED TO THE DEHYDROGENATION IS AT LEAST PARTLY CONVERTED UNDER DEHYDROGENATING CONDITIONS AT THE RECYCLE POINT.
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公开(公告)号：ES2286626T3
公开(公告)日：2007-12-01
申请号：ES04722167
申请日：2004-03-20
Applicant: BASF AG
Inventor： DIETERLE MARTIN , PETZOLDT JOCHEN , ARNOLD HEIKO , RUPPEL WILHELM , MULLER-ENGEL KLAUS JOACHIM
IPC: C07C57/055 , C07C51/25
Abstract: Procedimiento para la oxidación parcial de la acroleína para dar ácido acrílico, en fase gaseosa, catalizada de manera heterogénea, en el que se conduce una mezcla inicial gaseosa de reacción, que contiene acroleína, oxígeno molecular y, al menos, un gas inerte, que contiene el oxígeno molecular y la acroleína en una proporción molecular de O2 : C3H4O = 0, 5, en una etapa de reacción, a través de una carga a granel de catalizador en lecho fijo, cuya masa activa es al menos un óxido multimetálico, que contiene uno de los elementos Mo y V, con la condición de que - la carga a granel del catalizador en lecho fijo esté dispuesta en dos zonas de temperatura A, B, sucesivas en el espacio, - tanto la temperatura de la zona de temperatura A como también la temperatura de la zona de temperatura B sea una temperatura en el intervalo desde 230 hasta 320ºC, - la carga a granel del catalizador en lecho fijo esté constituida por, al menos, dos zonas de carga a granel del catalizador en lecho fijo, sucesivas en el espacio, siendo esencialmente constante la actividad específica, con respeto al volumen, dentro de una zona de la carga a granel del catalizador en lecho fijo y aumentando bruscamente en el sentido de flujo de la mezcla gaseosa de la reacción en la transición desde una zona de la carga a granel del catalizador en lecho fijo hasta otra zona de la carga a granel del catalizador en lecho fijo, - la zona de temperatura A se extienda hasta una conversión de la acroleína del 45 hasta el 85 % en moles.
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公开(公告)号：DE102005062026A1
公开(公告)日：2007-06-28
申请号：DE102005062026
申请日：2005-12-22
Applicant: BASF AG
Inventor： DIETERLE MARTIN , DIEFENBACHER ARMIN , MUELLER-ENGEL KLAUS JOACHIM , PETZOLDT JOCHEN
Abstract: Heterogenous catalytic partial gas phase oxidation of propylene to acrylic acid comprises introducing a reaction gas initial mixture (I) containing propylene and molecular oxygen and an inert dilution gas in a first reaction stage at increased temperature into a first reaction zone; reducing the temperature of the product gas mixture 1 and adding a secondary gas in the form of molecular oxygen and/or inert gas to the product gas mixture 1; and subsequently introducing the product gas mixture 1 and an inert dilution gas, into a second reaction stage at increased temperature. Procedure for heterogenous catalytic partial gas phase oxidation of propylene to acrylic acid comprises introducing a reaction gas initial mixture (I) containing propylene and molecular oxygen in a molar ratio of >= 1 and at least an inert dilution gas in a first reaction stage at increased temperature into a first reaction zone through at least a first catalyst bed, whose catalysts exhibit at least a multi-metal oxide (A) containing molybdenum, iron and bismuth as active mass, in such a manner that the propylene conversion during a single passage through the catalyst bed is >= 90 mol.% and the resulting selectivity of the acrolein formation and the acrylic acid by-product formation is >= 80 mol.%; reducing the temperature of the product gas mixture 1 leaving the first reaction stage optionally by direct or indirect cooling and adding a secondary gas in the form of molecular oxygen and/or inert gas to the product gas mixture (I); and subsequently introducing the product gas mixture 1, as the reaction gas initial mixture (II) containing molecular oxygen and acrolein in a molar ratio of >= 0.5 and at least an inert dilution gas, into a second reaction stage at increased temperature, through at least a second catalyst bed, whose catalysts exhibit multi-metal oxide (A1)containing at least molybdenum and vanadium as active mass in such a manner that the acrolein conversion during a single passage through the catalyst bed is >= 95 mol.% and the selectivity of the acrylic acid formation that spreads over both the reaction stage is >= 70 mol.%, related to the converted propylene, where (I) contains up to 3 mol.% of cyclopropane, based on the molar quantity of propane, and is produced by simultaneously using raw propylene.
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公开(公告)号：DE102005052923A1
公开(公告)日：2007-05-10
申请号：DE102005052923
申请日：2005-11-03
Applicant: BASF AG
Inventor： DIETERLE MARTIN , SCHINDLER GOETZ-PETER , KLANNER CATHARINA
Abstract: Stable continuous process for the preparation of acrolein and/or acrylic acid from propane comprises heterogeneously catalyzed dehydrogenation of a propane to obtain a product gas mixture A; optionally introducing the mixture A into a first separation zone to obtain product gas mixture A1; introducing mixture A or A1 into a zone B, where in an oxidation reactor, the propylene is oxidized with molecular oxygen to form e.g. acrolein and/or acrylic acid as end product and product gas mixture B; and determining the molecular oxygen content of the product gas mixture B. Stable continuous process for the preparation of acrolein and/or acrylic acid from propane comprises heterogeneously catalyzed dehydrogenation of a propane in the presence of a molecular oxygen to obtain a product gas mixture A containing propane and propylene, in a first reaction zone A; optionally introducing the product gas mixture A into a first separation zone, to separate a partial quantity or more of the components (which are contained in the mixture and different from propane and propylene) to obtain a remaining product gas mixture A1 containing propane and propylene; introducing product gas mixture A or A1 into a second reaction zone B for feeding at least an oxidation reactor, where in at least an oxidation reactor the propylene contained in the gas mixture A or A1 is subjected to a selectively heterogeneously catalyzed partial gas-phase oxidation with molecular oxygen to form acrolein and/or acrylic acid as end product, non-converted propane, excess molecular oxygen and optionally gas mixture B containing non-converted propylene; separating the end product and subsequently recycling the residue gas containing propane, molecular oxygen, non-converted propylene, at least partially non-converted propane, molecular oxygen and optionally non-converted propylene as molecular oxygen containing cycle gas 1 by cycle gas method, into the reaction zone A; continuously supplying fresh propane into at least one of the zones such as reaction zone A, separation zone A, reaction zone B and separating zone B, where the supply of the fresh propane takes place at a rate, which exhibits a stationary value in the stable operating condition of the process; and determining the molecular oxygen content of the product gas mixture B and comparing with the given stationary target content of the molecular oxygen in the product gas mixture B for stable operating condition of the process; where, if the content of the molecular oxygen at any point of time in the product gas mixture B is larger than the stationary target content, the supply rate of the fresh propane supplied at this time is larger than its stationary value and if the content of the molecular oxygen at any point of time in the product gas mixture B is smaller than the stationary target content, the supply rate of the fresh propane supplied at this time is smaller than its stationary value.
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Patent Agency Ranking96.发明专利
公开(公告)号：ZA200508598B
公开(公告)日：2006-12-27
申请号：ZA200508598
申请日：2005-10-24
Applicant: BASF AG
Inventor： PETZOLDT JOCHEN , DIETERLE MARTIN , ARNOLD HEIKO , RUPPEL WILHELM , MULLER-ENGEL KLAUS JOACHIM
IPC: C07C20060101 , C07C17/35 , C07C51/25
Abstract: In a process for heterogeneously catalyzed partial gas phase oxidation of propene to acrolein, the starting reaction gas mixture is oxidized over a fixed catalyst bed which consists of at least two fixed catalyst bed zones and is accommodated in two successive temperature zones A, B, and the transition from temperature zone A to temperature zone B does not spatially coincide with a transition from one fixed catalyst bed zone to another fixed catalyst bed zone.
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公开(公告)号：DE102005009885A1
公开(公告)日：2006-09-14
申请号：DE102005009885
申请日：2005-03-01
Applicant: BASF AG
Inventor： DIETERLE MARTIN , DIEFENBACHER ARMIN , SCHINDLER GOETZ-PETER , KLANNER CATHARINA , MUELLER-ENGEL KLAUS-JOACHIM , ADAMI CHRISTOPH
Abstract: Acrolein or acrylic acid is prepared by catalyzing partial gas phase oxidation of propene, where a starting reaction gas mixture having propylene and molecular oxygen reactants and inert molecular nitrogen and propane diluent gasses is conducted at elevated temperature through a fixed catalyst bed whose active composition is a multimetal oxide having molybdenum, iron and bismuth. Preparation of acrolein or acrylic acid involves catalyzing partial gas phase oxidation of propene, where a starting reaction gas mixture having propylene and molecular oxygen reactants and the inert molecular nitrogen and propane diluent gasses and having the molecular oxygen and the propylene in a molar oxygen;C 3H 6 ratio of >=1 is conducted at elevated temperature through a fixed catalyst bed whose active composition is a multimetal oxide having molybdenum, iron and bismuth based on its total volume of 6-9 vol.% propylene, 8-18 vol.% molecular oxygen. 6-30 vol.% propane and 32-72 vol.% molecular nitrogen. The molar ratio V 1 of propane in starting reaction gas mixture to propylene in starting reaction gas mixture is 1-4. The molar V 2 of molecular nitrogen present in starting reaction gas mixture to molecular oxygen in starting reaction the mixture is 2-6, and the molar ratio of the molecular oxygen in starting reaction gas mixture to propylene in starting reaction mixture is 1.3-2.4.
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公开(公告)号：DE102005010111A1
公开(公告)日：2006-09-07
申请号：DE102005010111
申请日：2005-03-02
Applicant: BASF AG
Inventor： DIETERLE MARTIN , MUELLER-ENGEL KLAUS JOACHIM , HECHLER CLAUS , HAMMON ULRICH , DIEFENBACHER ARMIN
IPC: C07C57/05 , C07C57/07 , C08F20/06 , C08F291/00
Abstract: Acrolein or acrylic acid is prepared by catalyzing partial gas phase oxidation of propene, where a starting reaction gas mixture having propylene and molecular oxygen reactants and inert molecular nitrogen and propane diluent gasses is conducted at elevated temperature through a fixed catalyst bed whose active composition is a multimetal oxide having molybdenum, iron and bismuth. Preparation of acrolein or acrylic acid involves catalyzing partial gas phase oxidation of propene, where a starting reaction gas mixture having propylene and molecular oxygen reactants and the inert molecular nitrogen and propane diluent gasses and having the molecular oxygen and the propylene in a molar oxygen;C 3H 6 ratio of >=1 is conducted at elevated temperature through a fixed catalyst bed whose active composition is a multimetal oxide having molybdenum, iron and bismuth based on its total volume of 6-9 vol.% propylene, 8-18 vol.% molecular oxygen. 6-30 vol.% propane and 32-72 vol.% molecular nitrogen. The molar ratio V 1 of propane in starting reaction gas mixture to propylene in starting reaction gas mixture is 1-4. The molar V 2 of molecular nitrogen present in starting reaction gas mixture to molecular oxygen in starting reaction the mixture is 2-6, and the molar ratio of the molecular oxygen in starting reaction gas mixture to propylene in starting reaction mixture is 1.3-2.4.
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公开(公告)号：BRPI0408642A
公开(公告)日：2006-03-28
申请号：BRPI0408642
申请日：2004-03-20
Applicant: BASF AG
Inventor： DIETERLE MARTIN , PETZOLDT JOCHEN , ARNOLD HEIKO , MUELLER-ENGEL KLAUS JOACHIM
IPC: C07C51/25 , C07C57/055
Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of acrolein to form acrylic acid, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed which consists of at least two fixed-bed catalyst bed zones and is arranged in two successive temperature zones A and B. The transition from temperature zone A to temperature zone B does not coincide with a transition from a fixed-bed catalyst bed zone to another fixed-bed catalyst bed zone.
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公开(公告)号：BRPI0408636A
公开(公告)日：2006-03-28
申请号：BRPI0408636
申请日：2004-03-20
Applicant: BASF AG
Inventor： DIETERLE MARTIN , PETZOLDT JOCHEN , MUELLER-ENGEL KLAUS JOACHIM
IPC: C07C45/35
Abstract: The invention relates to a method for the heterogeneously catalysed partial gas phase oxidation of propene to form acrolein, whereby the initial mixture of reaction gas is oxidised on a fixed-bed catalyst bed arranged in two successive reaction zones A and B, with a propene load
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